The queen will signal her willingness to mate with a unique posture: head down, forelegs bent, rear quarters raised to expose the vulva ( this raised posture is called lordosis), with the tail raised and held to the side of the body, all designed to accomodate entry by the tom cat's penis. Her rear legs will tread rhythmically, as if walking in place.

The tom cat will mount the female from the rear, holding her on the back of the neck with his teeth. This biting behavior may in part be to ensure cooperation, but may also stimulate a part of the female's brain that induces ovulation.

Whole male cats have barbed penises (much like a fishhook), and upon withdrawal, the female cat will often scream (whether from ecstasy or pain is questionable). It is also believed that the barbed penis stimulates ovulation. In fact, breeders sometimes use "Teaser Toms" to stimulate ovulation and end the estrus cycle in queens which are not yet ready for breeding. Teaser Toms are neutered by vasectomy, leaving the barbs on the penis to stimulate ovulation.
Source:http://us.f831.mail.yahoo.com/ym/Sho...&VScan=1&Idx=3

These two are from the same litter. They were born in the wild. Peeka, the white one, looks and acts Siamese: he is fascinated with water and is turning into quite the vocalist. His tail is striped but not kinked, or whatever it is that Siamese have...

The other two surviving kittens of the litter look very different too. In fact, none looked the same but somehow you can tell they are all brothers, (all four males). Still, none look as strikingly like Peeka as Peek does. There are Siamese cats in the neighborhood here, who often run amok so we figure we know who his papa is...or where he is from, I should say. (Peek has his tongue out in this picture.)

Katie (TNR!): You know it. I gave up though, trying to get the manager of the park to simply make it a rule that if you have animals here you must have them spayed/neutered. I know just about every other park (mobile home park) does it, but it wasn't her idea, so she won't do it. (Long unfortunate story and nothing much I can do about it since I cannot financially afford to do it myself.)

I think I even know the cat who is Boo's father. I captured him and got him rescued from animal control and he is all taken care of now. But he was running around with all his sexual organs, and as a very young male making babies. He was an adorable kitten but they lost interest in him and left him outside not long after. Old story, eh?